Unveiling plasmid diversity and functionality in pristine groundwater
Background Plasmids are key in creating a dynamic reservoir of genetic diversity, yet their impact on Earth’s continental subsurface—an important microbial reservoir—remains unresolved. We analyzed 32 metagenomic samples from six groundwater wells within
Olga María Pérez-Carrascal +3 more
doaj +1 more source
Diversity and biosynthetic potential of culturable aerobic heterotrophic bacteria isolated from Magura Cave, Bulgaria [PDF]
Biocapacity of bacteria inhabiting karstic caves to produce valuable biologically active compounds is still slightly investigated. A total of 46 culturable heterotrophic bacteria were isolated under aerobic conditions from the Gallery with pre-historical
Kambourova Margarita +4 more
core
The Impact of Host Rock Geochemistry on Bacterial Community Structure in Oligotrophic Cave Environments. [PDF]
Despite extremely starved conditions, caves contain surprisingly diverse microbial communities. Our research is geared toward understanding what ecosystems drivers are responsible for this high diversity. To asses the effect of rock fabric and mineralogy,
Hazel A. Barton +5 more
doaj
Long-term exposure to trace levels of arsenic (As) in shallow groundwater used for drinking and irrigation puts millions of people at risk of chronic disease.
Edwin T. Gnanaprakasam +7 more
doaj +1 more source
Biogeochemical Changes During Bio-cementation Mediated by Stimulated and Augmented Ureolytic Microorganisms. [PDF]
Microbially Induced Calcite Precipitation (MICP) is a bio-mediated cementation process that can improve the engineering properties of granular soils through the precipitation of calcite.
DeJong, Jason T +3 more
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Discovery Prospects for a Supernova Signature of Biogenic Origin
Approximately 2.8 Myr before the present our planet was subjected to the debris of a supernova explosion. The terrestrial proxy for this event was the discovery of live atoms of 60Fe in a deep-sea ferromanganese crust.
Basu +27 more
core +1 more source
Interrelationship of hydrology, microbial colonisation and hydrometallurgy in a simulated chalcopyrite heap leach [PDF]
Includes bibliographical references (leaves 104-115).Chalcopyrite is the most abundant primary copper sulphide mineral found worldwide. As copper grades of ores available for extraction decrease, heap bioleaching is gaining interest as a potential ...
Spurr, Nicholas Robert Louis
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Presencia de Pool Fingers y u-loops en la Cova des Pas de Vallgornera (Mallorca, España) [PDF]
[spa] En este trabajo se da a conocer la presencia de unos espeleotemas muy particulares, pool fingers y u-loops, que se desarrollan en gours de la Cova des Pas de Vallgornera y que podrían indicar una influencia de actividad bacteriana en su ...
Fornós, Joan Josep, Merino, Antoni
core
Extreme meteorological events and anthropogenic influences determine important variations in microbial community composition. To know the extent of these variations, it is necessary to delve deeper into the geogenic factors to be considered as a baseline.
Samuel Pelacani +4 more
doaj +1 more source
Genome streamlining in Parcubacteria transitioning from soil to groundwater
Background To better understand the influence of habitat on the genetic content of bacteria, with a focus on members of Candidate Phyla Radiation (CPR) bacteria, we studied the effects of transitioning from soil via seepage waters to groundwater on ...
Narendrakumar M. Chaudhari +4 more
doaj +1 more source

